Abstract

The purpose of this study was to provide further validation a new measure of mental toughness in sport. The Inventory of Mental Toughness Factors in Sport (IMTF-S) was originally developed and validated using principal component analysis. For the present study, the psychometric properties of the IMTF-S were again evaluated, but by way of the Rasch Rating Scale Model using the same sample (n=329) of athletes, and the same 42-item instrument measuring mental toughness on a 5-point Likert-type scale (always-never). Results indicate the IMTF-S is a psychometrically-sound instrument capable of producing valid and reproducible measures of mental toughness in sports.

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